#5B4284
Closest named color: Dark Slate Blue (#483D8B). oklch(43.8% 0.108 299.4), rgb(91, 66, 132).
Aa
White text reads best on this color (8.21:1).
About this color
#5B4284 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.108 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 8.21:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #5B4284 |
| RGB | rgb(91, 66, 132) |
| HSL | hsl(263, 33%, 39%) |
| OKLCH | oklch(43.8% 0.108 299.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #5B4284 | 8.21:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #5B4284 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #5B4284 text on white | 8.21:1 | AAA | Lc 88.2 | Fine for body text |
| #5B4284 text on black | 2.55:1 | Fails | Lc -14.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD4EE
oklch(88.4% 0.036 299.7)
-
Step 300
300
#C6B8E4
oklch(80.9% 0.063 299.5)
-
Step 400
400
#AA92D7
oklch(70.7% 0.102 299.8)
-
Step 500
500
#9576CC
oklch(63.1% 0.129 299.3)
-
Step 600
600
#805DB8
oklch(55.5% 0.14 299.6)
-
Step 700
700
#6C4C9F
oklch(49% 0.131 299.3)
-
Step 800
800 (this color)
#5B4284
oklch(43.8% 0.108 299.4)
-
Step 900
900
#483667
oklch(37.6% 0.083 299.3)
-
Step 950
950
#2A203D
oklch(27% 0.054 298.6)
#5B4284 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2D4F86 | 0.071 |
| Deuteranopia (no green cones) | #334E82 | 0.066 |
| Tritanopia (no blue cones) | #534E5D | 0.083 |
| Achromatopsia (no color) | #4F4F4F | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B4284
#5B4284
oklch(43.8% 0.108 299.4)
- #4C5900
#4C5900
oklch(43.7% 0.103 119)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #5B4284, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Twilight #4E518B ΔE 0.043
- Blueberry #464196 ΔE 0.047
- Dusk #4E5481 ΔE 0.053
- Rebecca Purple #663399 ΔE 0.054
- Dusty Grape #545775 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.077
- Dusk Blue #26538D ΔE 0.080
Use #5B4284 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.